diff options
Diffstat (limited to 'distrib/configure.ac.in')
| -rw-r--r-- | distrib/configure.ac.in | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/distrib/configure.ac.in b/distrib/configure.ac.in index ac6af24b94..a15b4a5a3c 100644 --- a/distrib/configure.ac.in +++ b/distrib/configure.ac.in @@ -134,10 +134,20 @@ dnl May need to use gcc to find platform details. dnl -------------------------------------------------------------- FPTOOLS_SET_HASKELL_PLATFORM_VARS -dnl WordSize for settings.in +dnl TargetWordSize for settings.in AC_CHECK_SIZEOF(void *, 4) -WordSize=$ac_cv_sizeof_void_p -AC_SUBST(WordSize) +if test "x$ac_cv_sizeof_void_p" = "x0"; then + AC_MSG_ERROR([Failed to determine machine word size. Does your toolchain actually work?]) +fi +dnl Check that the toolchain we have is consistent with what the compiler expects +if test "x$ac_cv_sizeof_void_p" != "x@TargetWordSize@"; then + AC_MSG_ERROR([This binary distribution produces binaries for a target with + word size of @TargetWordSize@, but your target toolchain produces binaries + with a word size of $ac_cv_sizeof_void_p. Are you sure your toolchain + targets the intended target platform of this compiler?]) +fi +TargetWordSize=$ac_cv_sizeof_void_p +AC_SUBST(TargetWordSize) # dnl ** how to invoke `ar' and `ranlib' |